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A Tight-Binding Hamiltonian for the High-Temperature Superconductor YBa2Cu3O7

Published online by Cambridge University Press:  28 February 2011

M.J. DeWeert,
D.A. Papaconstantopoulos and
W.E. Pickett
M.J. DeWeert
Affiliation:
Complex Systems Theory Branch, Code 4690, Naval Research Laboratory, Washington, DC 20375-5000
D.A. Papaconstantopoulos
Affiliation:
Complex Systems Theory Branch, Code 4690, Naval Research Laboratory, Washington, DC 20375-5000
W.E. Pickett
Affiliation:
Complex Systems Theory Branch, Code 4690, Naval Research Laboratory, Washington, DC 20375-5000
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Abstract

We present a highly accurate tight-binding parametrization of the LAPW band structure of the high-temperature superconductor YBa2Cu3O7, discuss the methodology used in obtaining this fit, and its potential application to a Tight-Binding Coherent-Potential Approximation (TB-CPA) calculation of the effects of oxygen vacancies on the electronic structure.

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References

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